I've got a folder in LR3 that contains both CR2 files and PSDs of the same images. Yeah, probably not the way I should have done it, but I'm still learning. I'm trying to select JUST the CR2 files. So I figure sort the images by file extension and I'll get all the CR2s first. But that's not happening. I'm still getting PSDs and CR2s intermingled.

So I try sorting by file type. Same result. Is the sort broken, or is there something I just don't get?